Electric drink mixer



Jan. 29, 1.929.

- R. B. GLCHRIST ELETRIc DRINK MIXER Filed June 14, 1924 Patented Jan. 29, 192e.

[UNITED RAYMOND B. GILCHRIST, '0F NEWARK, NEW JERSEY, .ASSIGNORI T0 THE GILCHRIST COMPANY, OFVNEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ELECTRIC DRINK MIIXER.

Application led June 14,

. The invention relates to electric drink mixers.

The primary objectof the present invention is to provide an electric drink mixer in which provision is made for absorbing the vibration occasioned by the rapid operation of the motor so that it is not transmitted to the supporting base with the resultant ill effects, such, for example, as noise, and for permitting the motor to yield suiiciently to prevent distortionv or displacement of the agitator shaft resulting from accidental causes or engagement of the receptacle with the shaft. In general, the mixer comprises a standard for the motor which is formed from a sheet metal stampin ,the'latter being sutliciently resilient. to a sorb the vibration of the motor and to permit the motor to yield in response to displacement of the agitator shaft.

Another object of the ,invention is to provide an electric drink mixer having a support for the receptacle which is ad'ustable so that the elevation at which the receptacle is held may be varied.

A further object of the invention is to proi vide an electric drink mixer which is of new and improved construction and embodies a mimimum number of parts so that itI may be produced at a comparatively low cost.

A still further object of the invention is the provision of improved means for supporting the bottom of the receptacle.

The invention consists in the several novel features hereinafter set forth and more particularly defined bythe claims at the conclusion hereof. 1

Other; objects will appear from the description.

In the drawing Fig. 1 is a vertical section of a mixer embodying the invention, the motor being shown in elevation. Fig. 2 is a detail perspective of the supporting stand* ard. Fig. 3 is a perspective ofthe unitary receptacle holding hook and lugs for pivotally supporting the switch lever. Fig. 4 .is a front view of that portion of the standard to which is secured the receptacle-supportingstud.

The invention is exemplified in a drink mixer comprisin a base 5 which is provided with cushion pa s 5a and is usuallyA adapted to rest on a table, counter or other support. Ar

1924. Serial N0. 719,954.

standard 6, which is formed of a plate of sheet metal, is curved in cross section and is fitted' in a conformably curved seat 8 in the base 5 by means of screws 7x which pass through holes 9 punched in the standard. The upper end of the standard is bulged forwardly, as at 10, and formed with an upwardly extending portion 11 which is curved to conform to the casing of an electric"1notor 12. The latter is secured to the `portionvll by means of screws which pass 'through holes 13 punched in the standard.4 An opening 14 1s also punched in the standard portion 11 for the operation of the automatic switch for controlling the motor. To the rotor of the electric-motor is connected a depending shaft l5, to the lower end of which an agitator 16 is secured. r1he front face of the standard 6 is concave .to form a guide for a receptacle 17 while it is being manually nianipulated into. or out of its operative positionaround the agitator. The receptacle 1s supported while it is in its operative position upon a frontwardly projecting frustoconical stud 18 which has its small end fixed to thecentral portion of the front or concave face of the standard 6 by means of a screw 19. The latter passes through a hole 20 which is punched in the standard.

' thereof is laterally rounded and consequently the receptacle may be shifted into place either sidewse or frontwise. An additional characteristic of the specific form of the stud is that the upper oroperating face thereof co-operates with the tapered or inclined peripheral portion of the' receptacle bottom to center automatically the receptacle and shift it towards the standard.V 4`A hook .21 100 for entering the top of the receptacle and cooperating with stud 18 to hold the receptacle in its operative position is .formed f sheet metal and comprises'an integral plate or bowed portion 22 which fits against the 105 front concave face of standard /and in'- tegral lugs 23 which passthrough slots 24 which are punched in the standard. A hook 31 passes through a square hole 32 in the standard to support the plate and a screw 25 passes through a hole 26 in the standard to secure the plate and standard together. The lugs 23, projecting from therear of the standard, serve to carry a pin 27 which forms the fulcrum for a lever 28 which carries at its upper end a switch 29 for controlling the motor. The lower end 30 of the lever extends through a slot 28a in the 'standard and is positioned to be engaged by the receptacle 17 to automatically control the operation of the motor by placement and removalof the receptacle into` and out of' its operative position. This switch is of the construction exhibited in an application filed by me February 8, 1923, to which reference may be had for a detailed illustration thereof.

The concave front face of the standard, 6' serves as a guide for directing the receptacle into and out of its operative position. In operation, the operator slides the receptacle upwardly along the standard 6 until its rim is held by hook 21 and the bottom of the receptacle rests Aon stud 18. During this placement, the switch-lever 28 will be operated to automatically start the motor. To remove the receptacle at the end of a mxing operation, it is only necessary to move the bottom of the receptacle forwardly to clear stud 18 and then lower it to clear the bottom of the agitator 16. The standard 6 isf formed to provide sufficient clearance below the agitator 16 to permit the manipulation of the receptacle into and out of its operative position.

In practice, it has been found that when the supporting standard 6 is stamped of sheet or plate metal of a thickness which leaves the same resilient, the vibration resulting from the high speed operation of the motor and the rotation of the agitator in the liquid in the receptacle 17 is reduced to a practical minimum, because the vibrations are absorbed, rather than transmitted thereby. Another characteristic of using a resilient standard is vthat when the receptacle is accidently brought into contact with the agitator 16 while the latter is rotating, the standard will permit the motor to respond so as to avoid distortion of shaft 15 or displacement of the shaft bearings and, consequently, the shaft will not bevdisturbed from its desired true alignment or correct axial position which is necessary in order to overcome noise,'as well as .for smooth operation. Another advantage, resulting from this resilient standard, is that it absorbs Ithe vibration so that there will no no tendency of the base 5 to move on the table or "counter upon which it rests. Another advantage is that the standard 6 may be produced at a low cost. l

The invention is not to be understood as restricted to the details set forth, since these may be modified Within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is: y

1. In a drink mixer, the combination of-an electric motor, a standard to which the motor is fixedf, an agitator driven by the motor, and means to removably support a vreceptacle in its operative position, said standard being formed of a.strip ofsuitable material and 4suiiicient thinness to resiliently and substantially rigidlyl support the motor.

2. In' a'drink mixer, the combination of an electric motor, a standard to which the motor is fixed, an agitator driven by the motor, and means on the standard to support a receptacle in its operative position, said standard being formed of a strip of suitable material and sufficient thinness to resiliently and substantially rigidly support the motor. 3. In a drink mixer, the combination of a portable base adapted to rest on a support, an electric. motor, a standard having its lower end fixed to the base and to the upper end of which the motor is fixed, an agitator driven by the motor, and means to removably support a receptacle in its operative position, said standard being formed of a strip of suitable material and sufficient thinness to resiliently and substantially rigidly support the motor.

4. In a drink mixer, the combination of an electric motor, a supporting standard to the upper end of which` the motor is fixed, an agitator driven by the motor, and meanscomprising a support fixed to the standard to hold a receptacle in its operative' position, said standard being formed of' a strip of suitable material and suiicient thinness to resiliently and substantially rigidly support the -4 motor.

5. In a drink mixer, the combination of'a base adapted torest on a support, an electric motor, a standard having its lower end secured to said base and to the upper end of which the motor is fixed, an agitator driven by the motor, and means comprising a sup- 'port fixedly secured to the standard to support a receptacle in its operative position, said standard being formed of a strip of suitable material and sufficient thinness to resiliently and substantially rigidly support the motor.

- 6. In a drink mixer, the combination of an electric motor, a standard to which the motor is fixed, an agitator drivenby the motor, a

bot-tom support for a receptacle fixed on the lll y the motor.

electric motor, a supporting standard con-- 8. In a drink'mixer, the combination of an cavo-convex in cross-section and to the upper end of which the motor is fixed, an agitator driven by the motor, and means to removably support a receptacle in its operative position, said standard being'formed of a strip of sheet metal and sufficient thinness to resiliently and substantially rigidly support the motor.

9. In a drink mixer, the combination of a supporting standard having its upper end shaped to form a seat, an electric motor xed in said seat, an agitator driven by the motor, and means to removably support a receptacle in its operative position, said standard being formed of a strip of sheet metal and sufficient thinness to resiliently and substantially rigidly support the motor.

10. In a drink mixer, the combination of a supporting standard having its upper end bulged forwardly and=curved to form a seat, an electric motor fixedto said seat, an agitator driven by the motor, and means to removably support a receptacle in its operative po-L sition, said standardbeing formed of a strip of sheet metal and sufficient thinness to resiliently and 4substantially rigidlysupport the motor.

11. I-n a drink mixer, the combination of an electric motor, a standard for supporting the motor, an agitator driven by said motor, means to removably support a receptacle in its operative position comprising a hook for holdingfthe receptacle, provided with a lug extending through the standard, and a switch for controlling the motor, Aconnected to said lu I2. In a drink mixer, the combination of an electric motor, a standard for supporting the motor, an agitator driven by said motor, a

stud secured to the standardl for supporting a receptacle around the agitator, and switch means for controlling the motor operable by engagement with the upper portion ofthe re-v ceptacle, said stud being vertically adjustable onthe standard so that raising or lowering of the receptacle may be effected to bring said upper portion of the receptacle into ,the proper position with respect to said switch means.

' 13. In a drinkinix'er, the combination of an electric motor, a standard for supporting the motor, an agitator' driven by said motor, and

' means for removably supporting a receptacle in its operative position comprising a stud eccentrically mounted so that rotation thereof Will vary the elevation of the receptacle.

14'. In a drink mixer, the combination of an `electric motor, an agitator 'driven by the motor, and means fory holding a receptacle in its operativeposition beneath the motor upon manual manipulation of the receptacle itself into such position, comprising an element for retaining the upper part of said receptacle, and a forwardly projecting stud having a face for receiving and supporting the bottom of the receptacle, said face sloping laterally downwards from its top.

15. In adrink mixer, the combination of an electric motor, an agitator driven by the motor, and means for holding a receptacle in its operative position beneath the motor upon manual manipulation of the receptacle itself Ainto such position, comprising an element for retaining the upper part of said receptacle, and aforwardly projecting and flared stud having a face' for receivin and supporting the bottom of the receptac e, said face being rounded laterally.

16. In a drink mixer, the combination of an electric motor, an agitator driven by the motor, and means for holding a receptacle in its operative position beneath the motor upon manual manipulation of the receptacle itself into such position, comprising'an element, for retaining the upper part of said receptacle, and a forwardly projecting annular stud for receiving and supporting the bottom of the receptacle.

17. In a drink mixer, the combination of an electric motor, an agitator driven by the motor, and means for holding a receptacle in its operative position beneath the motor upon manual manipulation of the receptacle itself into suchfposition, comprising an element for retaining the upper part of said receptacle, and a forwardly projecting substantially frusto-conical stud for receiving and support# ing the bottom of the receptacle.

18. In a drink mixer, the combination of an electric motor operative to drive an agitator' shaft, means forming a vertically elongated concave guide for directing a receptacle upwardly into its operative position beneath the mot-or, and means for holding the receptacleiin such position comprising an element for retaining the upper part of the receptacle, and a relatively small stud iixedly secured to and projecting outwardly from the vertically lower central portion of the concave guide surface for receiving and supporting the bottom of the receptacle.` y

19. In a drink mixer for use with a round receptacle having a renounced frusto-conical bottom, the com ination of an electric motor, an agitator driven by the motor, and means for holding the receptacle in its operative position beneath the motor upon manual manipulation or shift of the receptacle itself into Such position, comprising an element for and a horizontally posit-ioned supporting i stud projectingfrontwardly with respect to the mixer proper. and having a, face for receiving and engaging against the conical p'eripheral portion of the receptacle bottom, said face being shaped to cooperate With said conical peripheral portion and effect automatic shift of the bottom part of the receptacle towards 'the inner' end of the stud. 10

Signed' at Newark, New Jersey, this 3rd clay of J une7 1924.

'RAYMOND B. GI-LoHRIsT. 

